With the latest version of Google Maps Api (ver. 3.4), with "sencha-touch.js" just included (no functions actually called), the listener for the 'click' event, added to a google.marker, does not work: it never gets called.
Listeners to other types of event (e.g. 'double click') just work fine.
With older versions of Google Maps Api, i.e. 3.2 o less, the above bug does not reproduce.